This project has been renamed and moved to GitHub

NASA's Mars Climate Observer crashed in September 1999 because of a serious breakdown in project management. However, that accident will be best remembered for the simple error that started everything: the value of a thrust parameter was entered into
computer systems in imperial, rather than SI units. That such a trivial mistake could ultimately bring about a mission failure is astonishing. It begs the question of why computers cannot help more when working with physical quantities? [Ref. 1]